//// This file is part of the uSTL library, an STL implementation.
////
//// Copyright (c) 2005-2009 by Mike Sharov <msharov@users.sourceforge.net>
//// This file is free software, distributed under the MIT License.
//
//#include "uexception.h"
//#include "ustring.h"
//#include "mistream.h"
//#include "sostream.h"
//#include "strmsize.h"
//#include "uspecial.h"
//#include <errno.h>
//#if HAVE_CXXABI_H && WANT_NAME_DEMANGLING
//    #include <cxxabi.h>
//#endif
//
//namespace ustl {
//
////----------------------------------------------------------------------
//
///// \brief Returns a descriptive error message. fmt="%s"
///// Overloads of this functions must set NULL as the default fmt
///// argument and handle that case to provide a default format string
///// in case the user does not have a localized one. The format
///// string should be shown in the documentation to not require
///// translators to look through code. Also, this function must
///// not throw anything, so you must wrap memory allocation routines
///// (like string::format, for instance) in a try{}catch(...){} block.
/////
//void exception::info (string& msgbuf, const char*) const throw()
//{
//    try { msgbuf.format ("%s", what()); } catch (...) { /* Ignore all exceptions */ }
//}
//
///// Reads the exception from stream \p is.
//void exception::read (istream& is)
//{
//    uint32_t stmSize;
//    xfmt_t fmt = xfmt_Exception;
//    is >> fmt >> stmSize >> m_Backtrace;
//    assert (fmt == m_Format && "The saved exception is of a different type.");
//    assert ((stmSize + 8) - exception::stream_size() <= is.remaining() && "The saved exception data is corrupt.");
//    m_Format = fmt;
//}
//
///// Writes the exception into stream \p os as an IFF chunk.
//void exception::write (ostream& os) const
//{
//    os << m_Format << uint32_t(stream_size() - 8) << m_Backtrace;
//}
//
///// Writes the exception as text into stream \p os.
//void exception::text_write (ostringstream& os) const
//{
//    try {
//	string buf;
//	info (buf);
//	os << buf;
//    } catch (...) {}
//}
//
////----------------------------------------------------------------------
//
///// Initializes the empty object. \p nBytes is the size of the attempted allocation.
//bad_alloc::bad_alloc (size_t nBytes) throw()
//: ustl::exception(),
//  m_nBytesRequested (nBytes)
//{
//    set_format (xfmt_BadAlloc);
//}
//
///// Returns a descriptive error message. fmt="failed to allocate %d bytes"
//void bad_alloc::info (string& msgbuf, const char* fmt) const throw()
//{
//    if (!fmt) fmt = "failed to allocate %d bytes";
//    try { msgbuf.format (fmt, m_nBytesRequested); } catch (...) {}
//}
//
///// Reads the exception from stream \p is.
//void bad_alloc::read (istream& is)
//{
//    ustl::exception::read (is);
//    is >> m_nBytesRequested;
//}
//
///// Writes the exception into stream \p os.
//void bad_alloc::write (ostream& os) const
//{
//    ustl::exception::write (os);
//    os << m_nBytesRequested;
//}
//
///// Returns the size of the written exception.
//size_t bad_alloc::stream_size (void) const
//{
//    return (ustl::exception::stream_size() + stream_size_of(m_nBytesRequested));
//}
//
////----------------------------------------------------------------------
//
///// Initializes the empty object. \p operation is the function that returned the error code.
//libc_exception::libc_exception (const char* operation) throw()
//: exception(),
//  m_Errno (errno),
//  m_Operation (operation)
//{
//    set_format (xfmt_LibcException);
//}
//
///// Copies object \p v.
//libc_exception::libc_exception (const libc_exception& v) throw()
//: exception (v),
//  m_Errno (v.m_Errno),
//  m_Operation (v.m_Operation)
//{
//}
//
///// Copies object \p v.
//const libc_exception& libc_exception::operator= (const libc_exception& v)
//{
//    m_Errno = v.m_Errno;
//    m_Operation = v.m_Operation;
//    return (*this);
//}
//
///// Returns a descriptive error message. fmt="%s: %m"
//void libc_exception::info (string& msgbuf, const char* fmt) const throw()
//{
//    if (!fmt) fmt = "%s: %m";
//    try { msgbuf.format (fmt, m_Operation, m_Errno, m_Errno); } catch (...) {}
//}
//
///// Reads the exception from stream \p is.
//void libc_exception::read (istream& is)
//{
//    exception::read (is);
//    is >> m_Errno >> m_Operation;
//}
//
///// Writes the exception into stream \p os.
//void libc_exception::write (ostream& os) const
//{
//    exception::write (os);
//    os << m_Errno << m_Operation;
//}
//
///// Returns the size of the written exception.
//size_t libc_exception::stream_size (void) const
//{
//    return (exception::stream_size() +
//	    stream_size_of(m_Errno) +
//	    stream_size_of(m_Operation));
//}
//
////----------------------------------------------------------------------
//
///// Initializes the empty object. \p operation is the function that returned the error code.
//file_exception::file_exception (const char* operation, const char* filename) throw()
//: libc_exception (operation)
//{
//    memset (m_Filename, 0, VectorSize(m_Filename));
//    set_format (xfmt_FileException);
//    if (filename) {
//	strncpy (m_Filename, filename, VectorSize(m_Filename));
//	m_Filename [VectorSize(m_Filename) - 1] = 0;
//    }
//}
//
///// Returns a descriptive error message. fmt="%s %s: %m"
//void file_exception::info (string& msgbuf, const char* fmt) const throw()
//{
//    if (!fmt) fmt = "%s %s: %m";
//    try { msgbuf.format (fmt, m_Operation, m_Filename, m_Errno, m_Errno); } catch (...) {}
//}
//
///// Reads the exception from stream \p is.
//void file_exception::read (istream& is)
//{
//    libc_exception::read (is);
//    string filename;
//    is >> filename;
//    is.align (8);
//    filename.copyto (filename, VectorSize(m_Filename));
//}
//
///// Writes the exception into stream \p os.
//void file_exception::write (ostream& os) const
//{
//    libc_exception::write (os);
//    os << string (m_Filename);
//    os.align (8);
//}
//
///// Returns the size of the written exception.
//size_t file_exception::stream_size (void) const
//{
//    return (libc_exception::stream_size() +
//	    Align (stream_size_of (string (m_Filename)), 8));
//}
//
////----------------------------------------------------------------------
//
///// \brief Uses C++ ABI call, if available to demangle the contents of \p buf.
/////
///// The result is written to \p buf, with the maximum size of \p bufSize, and
///// is zero-terminated. The return value is \p buf.
/////
//const char* demangle_type_name (char* buf, size_t bufSize, size_t* pdmSize)
//{
//    size_t bl = strlen (buf);
//#if HAVE_CXXABI_H && WANT_NAME_DEMANGLING
//    char dmname [256];
//    size_t sz = VectorSize(dmname);
//    int bFailed;
//    abi::__cxa_demangle (buf, dmname, &sz, &bFailed);
//    if (!bFailed) {
//	bl = min (strlen (dmname), bufSize - 1);
//	memcpy (buf, dmname, bl);
//	buf[bl] = 0;
//    }
//#else
//    bl = min (bl, bufSize);
//#endif
//    if (pdmSize)
//	*pdmSize = bl;
//    return (buf);
//}
//
////----------------------------------------------------------------------
//
///// Initializes the empty object. \p operation is the function that returned the error code.
//stream_bounds_exception::stream_bounds_exception (const char* operation, const char* type, uoff_t offset, size_t expected, size_t remaining) throw()
//: libc_exception (operation),
//  m_TypeName (type),
//  m_Offset (offset),
//  m_Expected (expected),
//  m_Remaining (remaining)
//{
//    set_format (xfmt_StreamBoundsException);
//}
//
///// Returns a descriptive error message. fmt="%s stream %s: @%u: expected %u, available %u";
//void stream_bounds_exception::info (string& msgbuf, const char* fmt) const throw()
//{
//    char typeName [256];
//    strncpy (typeName, m_TypeName, VectorSize(typeName));
//    typeName[VectorSize(typeName)-1] = 0;
//    if (!fmt) fmt = "%s stream %s: @0x%X: need %u bytes, have %u";
//    try { msgbuf.format (fmt, demangle_type_name (VectorBlock(typeName)), m_Operation, m_Offset, m_Expected, m_Remaining); } catch (...) {}
//}
//
///// Reads the exception from stream \p is.
//void stream_bounds_exception::read (istream& is)
//{
//    libc_exception::read (is);
//    is >> m_TypeName >> m_Offset >> m_Expected >> m_Remaining;
//}
//
///// Writes the exception into stream \p os.
//void stream_bounds_exception::write (ostream& os) const
//{
//    libc_exception::write (os);
//    os << m_TypeName << m_Offset << m_Expected << m_Remaining;
//}
//
///// Returns the size of the written exception.
//size_t stream_bounds_exception::stream_size (void) const
//{
//    return (libc_exception::stream_size() +
//	    stream_size_of(m_TypeName) +
//	    stream_size_of(m_Offset) +
//	    stream_size_of(m_Expected) +
//	    stream_size_of(m_Remaining));
//}
//
//} // namespace ustl
